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IRON 424B5: Shelf registration

Disc Medicine, Inc.

Filed with the SEC on · accession 0001193125-26-450184

IRON filed a 424B5 (prospectus (offering)) with the SEC on Nov 5, 2026. Disc Medicine, Inc. entered into a sales agreement with TD Cowen for an at-the-market offering of up to $189,925,765 of its common stock. The stock moved -5.8% by the first close after the filing.

Summary of the filing

Disc Medicine, Inc. entered into a sales agreement with TD Cowen for an at-the-market offering of up to $189,925,765 of its common stock. The company will pay TD Cowen up to 3.0% commission on gross proceeds.

For details, click here →How to read a 424B5 →

Key details

Maximum aggregate offering amount$189.9M
Agent commission rate$3
Sales agentTD Securities (USA) LLC (TD Cowen)
IssuerDisc Medicine, Inc.

How IRON stock reacted

Close before

$83.28

Nov 4, 2026

First close after

-5.78%

$78.47

5 trading days

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Since filing

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Frequently asked questions

What did IRON file with the SEC on Nov 5, 2026?

IRON filed a 424B5 (Shelf registration). Disc Medicine, Inc. entered into a sales agreement with TD Cowen for an at-the-market offering of up to $189,925,765 of its common stock. The company will pay TD Cowen up to 3.0% commission on gross proceeds.

What does a shelf registration mean for IRON stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B5?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did IRON stock react to this filing?

IRON closed at $83.28 before the filing and $78.47 on Nov 5, 2026 (-5.78%).

Other IRON SEC filings

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